add thicker belt & braces to pc92 field checking
[spider.git] / perl / DXProtHandle.pm
index 8730754bd8007a4abb7471562c0536d9f0293a5f..60040e4d525b527732abc578e0724462868e1325 100644 (file)
@@ -32,8 +32,13 @@ use DXHash;
 use Route;
 use Route::Node;
 use Script;
+use DXCIDR;
 
 use strict;
+use warnings qw(all);
+no warnings qw(uninitialized);
+
+
 
 use vars qw($pc11_max_age $pc23_max_age $last_pc50 $eph_restime $eph_info_restime $eph_pc34_restime
                        $last_hour $last10 %eph  %pings %rcmds $ann_to_talk
@@ -44,7 +49,7 @@ use vars qw($pc11_max_age $pc23_max_age $last_pc50 $eph_restime $eph_info_restim
                        $eph_pc15_restime $pc9x_past_age $pc9x_dupe_age
                        $pc10_dupe_age $pc92_slug_changes $last_pc92_slug
                        $pc92Ain $pc92Cin $pc92Din $pc92Kin $pc9x_time_tolerance
-                       $pc92filterdef $senderverify
+                       $pc92filterdef $senderverify $pc11_dwell_time $pc11_extract_route $pc92_ad_enabled $pc92c_ipaddr_enable
                   );
 
 $pc9x_dupe_age = 60;                   # catch loops of circular (usually) D records
@@ -57,6 +62,8 @@ $pc9x_time_tolerance;           # thing a node might send - once an hour and we
                                 # this is actually the partition between "yesterday" and "today" but old.
 $senderverify = 0;                             # 1 - check for forged PC11 or PC61.
                                 # 2 - if forged, dump them.
+$pc11_dwell_time = 2;                  # number of seconds to wait for a PC61 to come to substitute the PC11
+$pc11_extract_route = 1;               # generate missing  user route entry and IP address from passing PC61s
 
 
 $pc92filterdef = bless ([
@@ -87,14 +94,6 @@ sub handle_10
                return;
        }
 
-       # will we allow it at all?
-       if ($censorpc) {
-               my @bad;
-               if (@bad = BadWords::check($pc->[3])) {
-                       dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
-                       return;
-               }
-       }
 
        # is it for me or one of mine?
        my ($from, $to, $via, $call, $dxchan);
@@ -108,15 +107,17 @@ sub handle_10
 
        # if this is a 'nodx' node then ignore it
        if ($badnode->in($pc->[6]) || ($via && $badnode->in($via))) {
-               dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
+               dbg($line) if isdbg('nologchan');
+               dbg("PCPROT: Bad Node, dropped");
                return;
        }
 
-       # if this is a 'bad spotter' user then ignore it
+
        my $nossid = $from;
        $nossid =~ s/-\d+$//;
        if ($badspotter->in($nossid)) {
-               dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
+               dbg($line) if isdbg('nologchan');
+               dbg("PCPROT: Bad Spotter, dropped");
                return;
        }
 
@@ -127,14 +128,29 @@ sub handle_10
                        return;
                }
        }
+       
+       # will we allow it at all?
+       if ($censorpc) {
+               my @bad;
+               if (@bad = BadWords::check($pc->[3])) {
+                       my $bw = join ', ', @bad; 
+                       dbg($line) if isdbg('nologchan');
+                       dbg("PCPROT: Badwords: '$bw', dropped");
+                       return;
+               }
+       }
 
        # convert this to a PC93, coming from mycall with origin set and process it as such
-       $main::me->normal(pc93($to, $from, $via, $pc->[3], $pc->[6]));
+       my $ref = Route::get($pc->[6]);
+       my $ip = $ref->ip;
+       $main::me->normal(pc93($to, $from, $via, $pc->[3], $pc->[6]), $ip);
 }
 
-my $last;
-my $pc11_saved;
-my $pc11_saved_time;
+my %pc11_saved;                                        # delayed PC11s
+my $pc11_rx;                                   # no of pc11 rxed
+my $pc61_rx;                                   # no of pc61 rxed
+my $pc11_to_61;                                        # no of 'better' pc61, that replaced stored waiting pc11
+my $rpc11_to_61;                               # no of pc11s 'promoted' to pc61 by IP captured in routing table
 
 # DX Spot handling
 sub handle_11
@@ -154,33 +170,29 @@ sub handle_11
                }
        }
 
-       dbg("INPUT PC$pcno $line origin $origin recurse: $recurse") if isdbg("pc11"); 
+       dbg("---") if isdbg("pc11") || isdbg("pc61"); 
+       dbg("INPUT $self->{call}: $line via: $origin recurse: $recurse") if isdbg("pc11") || isdbg("pc61"); 
 
 #      my ($hops) = $pc->[8] =~ /^H(\d+)/;
 
        # is the spotted callsign blank? This should really be trapped earlier but it
        # could break other protocol sentences. Also check for lower case characters.
        if ($pc->[2] =~ /^\s*$/) {
-               dbg("PCPROT: blank callsign, dropped") if isdbg('chanerr');
+               dbg($line) if isdbg('nologchan');
+               dbg("PCPROT: blank callsign, dropped");
                return;
        }
        if ($pc->[2] =~ /[a-z]/) {
-               dbg("PCPROT: lowercase characters, dropped") if isdbg('chanerr');
+               dbg($line) if isdbg('nologchan');
+               dbg("PCPROT: lowercase characters, dropped");
                return;
        }
 
 
        # if this is a 'nodx' node then ignore it
        if ($badnode->in($pc->[7])) {
-               dbg("PCPROT: Bad Node $pc->[7], dropped") if isdbg('chanerr');
-               return;
-       }
-
-       # if this is a 'bad spotter' or an unknown user then ignore it. BUT if it's got an IP address then allow it through
-       my $nossid = $pc->[6];
-       $nossid =~ s/-\d+$//;
-       if ($badspotter->in($nossid)) {
-               dbg("PCPROT: Bad Spotter $pc->[6], dropped") if isdbg('chanerr');
+               dbg($line) if isdbg('nologchan');
+               dbg("PCPROT: Bad Node $pc->[7], dropped");
                return;
        }
 
@@ -188,34 +200,56 @@ sub handle_11
        my $d = cltounix($pc->[3], $pc->[4]);
        # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
        if (!$d || (($pcno == 11 || $pcno == 61) && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
-               dbg("PCPROT: Spot ignored, invalid date or out of range ($pc->[3] $pc->[4])\n") if isdbg('chanerr');
+               dbg($line) if isdbg('nologchan');
+               dbg("PCPROT: Spot ignored, invalid date or out of range ($pc->[3] $pc->[4])\n");
                return;
        }
 
        # is it 'baddx'
-       if ($baddx->in($pc->[2]) || BadWords::check($pc->[2])) {
-               dbg("PCPROT: Bad DX spot, ignored") if isdbg('chanerr');
+       if ($baddx->in($pc->[2])) {
+               dbg("PCPROT: Bad DX spot '$pc->[2]', ignored");
+               dbg($line) if isdbg('nologchan');
                return;
        }
 
-       # do some de-duping
+       # is it claiming to be BUST(ed)
        $pc->[5] =~ s/^\s+//;                   # take any leading blanks off
        $pc->[2] = unpad($pc->[2]);             # take off leading and trailing blanks from spotted callsign
        if ($pc->[2] =~ /BUST\w*$/) {
+               dbg($line) if isdbg('nologchan');
                dbg("PCPROT: useless 'BUSTED' spot") if isdbg('chanerr');
                return;
        }
-       if ($censorpc) {
-               my @bad;
-               if (@bad = BadWords::check($pc->[5])) {
-                       dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
-                       return;
-               }
-       }
        
+       my $nossid = $pc->[6];
+    $nossid =~ s/-\d+$//;
 
        my @spot = Spot::prepare($pc->[1], $pc->[2], $d, $pc->[5], $nossid, $pc->[7], $pc->[8]);
 
+       #   $f0 = frequency
+       #   $f1 = call
+       #   $f2 = date in unix format
+       #   $f3 = comment
+       #   $f4 = spotter
+       #   $f5 = spotted dxcc country
+       #   $f6 = spotter dxcc country
+       #   $f7 = origin
+       #   $f8 = spotted itu
+       #   $f9 = spotted cq zone
+       #   $f10 = spotter itu
+       #   $f11 = spotter cq zone
+       #   $f12 = spotted us state
+       #   $f13 = spotter us state
+       #   $f14 = ip address
+
+
+       # is this is a 'bad spotter' or an unknown user then ignore it. 
+       if ($badspotter->in($nossid)) {
+               dbg($line) if isdbg('nologchan');
+               dbg("PCPROT: Bad Spotter $pc->[6], dropped");
+               return;
+       }
+
        # global spot filtering on INPUT
        if ($self->{inspotsfilter}) {
                my ($filter, $hops) = $self->{inspotsfilter}->it(@spot);
@@ -225,64 +259,122 @@ sub handle_11
                }
        }
 
+       # Populate the routing table
+       $self->populate_routing_table($pc->[7], $pc->[6], $pc->[8]);
+       my $r = Route::User::get($pc->[6]);
+       if ($pcno == 61) {
+               unless ($pc->[8] && is_ipaddr($pc->[8])) {
+                       dbg("PCPROT: ROUTE $self->{call} NO IP ADDRESS in '$line'!");   
+               }
+       }
+
        # this is where we decide to delay PC11s in the hope that a PC61 will be along soon.
-       
        my $key = join '|', @spot[0..2,4,7]; # not including text
+
        unless ($recurse) {
+
                if ($pcno == 61) {
-                       if ($pc11_saved) {
-                               if ($key eq $pc11_saved->[0]) {
-                                       dbg("saved PC11 spot $key dumped, better pc61 received") if isdbg("pc11");
-                                       undef $pc11_saved;
+
+                       if ($pc11_saved{$key}) {
+                               # before we promote  because it's a better pc61, check that it's not a dupe (but don't insert it).
+                               if (Spot::dup_find(@spot[0..4,7])) {
+                                       dbg("PCPROT: Duplicate Spot  $self->{call}: $pc->[0] $key ignored\n") if isdbg('chanerr') || isdbg('dupespot') || isdbg('pc11');
+                                       delete $pc11_saved{$key};
+                                       return;
                                }
+
+                               ++$pc11_to_61;
+
+                               my $percent = $pc11_rx ? $pc11_to_61 * 100 / $pc11_rx : 0;
+                               dbg(sprintf("PROMOTED $self->{call}: BETTER $pc->[0] $key, using pc61, WAITING pc11 DUMPED: $pc61_rx pc11: $pc11_rx better pc61: $pc11_to_61 (%0.1f%%)", $percent)) if isdbg("pc11");
+
+                               delete $pc11_saved{$key}; # because we have promoted it, no longer needed.
+
+                               # so unlike the promotion by route, there is a stored, but uncounted PC11
+                               # which have discarded. But we have chosen to use better PC61 that's just come in
+                               # so we allow the PC61 to be counted later, but count the now discarded PC11
+                               # because it *did* come in.
+                               ++$pc11_rx;
                        } 
                }
+
                if ($pcno == 11) {
-                       if ($pc11_saved) {
-                               if ($key eq $pc11_saved->[0]) {
-                                       dbg("saved PC11 spot $key, dupe pc11 received and dumped") if isdbg("pc11");
-                                       return;         # because it's a dup
-                               }
+
+                       # if this fires then we have already had one or more PC11s but no PC61 for this spot
+                       if ($pc11_saved{$key}) {
+                               dbg("DUPE $self->{call} $pc->[0] key: $key is saved, ignored") if isdbg("pc11");
+                               return;         # because it's a dup
                        }
 
-                       # can we promote this to a PC61?
-                       my $r = Route::User::get($spot[4]); # find spotter
-                       if ($r && $r->ip) {                     # do we have an ip addres
-                               $pcno = 61;                                             # now turn this into a PC61
-                               $spot[14] = $r->ip;
-                               dbg("PC11 spot $key promoted to pc61 ip $spot[14]") if isdbg("pc11");
-                               undef $pc11_saved;
+                       # before we promote by route, check that it's not been preceded by a previous PC61
+                       if (Spot::dup_find(@spot[0..4,7])) {
+                               my $s = exists $pc11_saved{$key} ? " stored $key removed" : "";
+                               dbg("PCPROT: Duplicate Spot $self->{call}: PC11$s, recurse: $recurse, ignored\n") if isdbg('chanerr') || isdbg('dupespot') || isdbg('pc11');
+                               delete $pc11_saved{$key};
+                               return;
                        }
-               }
 
-               if ($pc11_saved && $key ne $pc11_saved) {
-                       dbg("saved PC11 spot $pc11_saved->[0] ne new key $key, recursing") if isdbg("pc11");
-                       shift @$pc11_saved;     # saved key
-                       my $self = shift @$pc11_saved;
-                       my @saved = @$pc11_saved;
-                       undef $pc11_saved;
-                       $self->handle_11(@saved, 1);
-               }
 
-               # if we are still a PC11, save it for a better offer
-               if ($pcno == 11) {
-                       $pc11_saved = [$key, $self, $pcno, $line, $origin, $pc];
-                       $pc11_saved_time = $main::systime;
-                       dbg("saved new PC11 spot $key for a better offer") if isdbg("pc11");
-                       return;
-               } else {
-                       dbg("PC61 spot $key passed onward") if isdbg("pc11");
+                       # If we have an ip address we can promote by route
+                       if ($r && $r->ip) {
+                               $pcno = 61;
+                               $pc->[0] = 'PC61';
+                               my $hops = $pc->[8];
+                               $pc->[8] = $spot[14] = $r->ip;
+                               ++$rpc11_to_61;
+                               my $percent = $pc11_rx ? $rpc11_to_61 * 100 / $pc11_rx : 0;
+                               dbg(sprintf("PROMOTED $self->{call}: ROUTE pc11 $key PROMOTED to pc61 with IP $spot[14] pc61: $pc61_rx pc11: $pc11_rx route->pc61 $rpc11_to_61 (%0.1f%%)", $percent)) if isdbg("pc11");
+                               $line = join '^', @$pc, $hops, '~';
+
+                               # update the stats (NOTE, thie record was a PC11, it has now become a PC61
+                               # this is NOT the same choosing a better PC61, that is a separate record. 
+                               ++$pc11_rx;             # 'cos we received as a PC11 it and it won't be a pc11 anymore 
+                               --$pc61_rx;             # 'cos we'll increment it later as it's now a pc61, no double counting
+                               
+#                              dbg("CHANGED saved key: $key PC11 line to $line") if isdbg('pc11');
+                               delete $pc11_saved{$key};
+                       }
+
+                       # if it is STILL (despite all efforts to change it) a PC11
+                       # save it and wait - it will be called from pc11_process
+                       if ($pcno == 11) {
+                               $pc11_saved{$key} = [$main::systime, $self, $pcno, $line, $origin, $pc];
+                               dbg("WAITING $self->{call}: NEW $pc->[0] spot $key waiting for a better offer") if isdbg("pc11");
+                               return;
+                       }
                }
        }
-
        
        # this goes after the input filtering, but before the add
        # so that if it is input filtered, it isn't added to the dup
        # list. This allows it to come in from a "legitimate" source
+       #
+       ## NOTE: this is where we insert the spot into the DXDupe cache
+       #
        if (Spot::dup(@spot[0..4,7])) {
-               dbg("PCPROT: Duplicate Spot $pc->[0] $key ignored\n") if isdbg('chanerr') || isdbg('dupespot');
+               dbg("PCPROT: Duplicate Spot  $self->{call}: $pc->[0] $key ignored\n") if isdbg('chanerr') || isdbg('dupespot') || isdbg('pc11');
                return;
        }
+
+       dbg("PROCESSING $self->{call}: $pc->[0] key: $key") if isdbg('pc11');
+       
+       if ($pcno == 11) {
+               ++$pc11_rx;
+       } else {
+               ++$pc61_rx;
+       }
+
+       # we check IP addresses for PC61 - this will also dedupe PC11 promotions
+       if (@$pc > 8 && is_ipaddr($pc->[8])) {
+               my $ip = $pc->[8];
+               $ip =~ s/,/:/g;
+               $ip =~ s/^::ffff://;
+               if (DXCIDR::find($ip)) {
+                       dbg($line) if isdbg('nologchan');
+                       dbg("PCPROT: PC61 $ip in badip list, dropped");
+                       return;
+               }
+       }
        
        # here we verify the spotter is currently connected to the node it says it is one. AKA email sender verify
        # but without the explicit probe to the node. We are relying on "historical" information, but it very likely
@@ -304,15 +396,24 @@ sub handle_11
                        if ($s) {
                                my $action = $senderverify > 1 ? ", DUMPED" : '';
                                $s =~ s/, $//;
-                               dbg("PCProt: Suspicious Spot $pc->[2] on $pc->[1] by $pc->[6]($ip)\@$pc->[7] $s$action");
+                               dbg("PCPROT: Suspicious Spot $pc->[2] on $pc->[1] by $pc->[6]($ip)\@$pc->[7] $s$action");
                                return unless $senderverify < 2;
                        }
                }
        }
 
-       # If is a new PC11, store it, releasing the one that is there (if any),
-       # if a PC61 comes along then dump the stored PC11
-       # If there is a different PC11 stored, release that one and store this PC11 instead,
+       # we until here to do any censorship to try and reduce the amount of noise that repeated copies
+       # from other connected nodes cause
+       if ($censorpc) {
+               my @bad;
+               if (@bad = BadWords::check($pc->[5])) {
+                       my $bw = join ', ', @bad;
+                       dbg($line) if isdbg('nologchan');
+                       dbg("PCPROT: Badwords: '$bw', dropped");
+                       return;
+               }
+       }
+
        
        # add it
        Spot::add(@spot);
@@ -397,21 +498,58 @@ sub handle_11
 
        # send out the filtered spots
        send_dx_spot($self, $line, @spot) if @spot;
+
+       # cancel any recursion as we have now processed it
+       my $count =  $pc11_to_61+$rpc11_to_61;
+       my $percent = ($pc11_rx + $pc61_rx) ? ($pc11_rx * 100) / ($pc11_rx + $pc61_rx) : 0;
+       my $pc11_61 = $pc11_rx ? ($count * 100) / $pc11_rx : 0;
+       my $data = "$pc->[0] key: $key";
+       my $stats = sprintf "pc11: $pc11_rx pc61: $pc61_rx pc11%%: %0.1f%% pc11->pc61: $count(%0.1f%%)", $percent, $pc11_61;
+       if ($recurse) {
+               if ($pc11_saved{$key}) {
+                       dbg("END $self->{call}: RECURSED $data removed and finished $stats") if isdbg('pc11');
+                       delete $pc11_saved{$key};
+               } else {
+                       dbg("END $self->{call}: RECURSED NO KEY finished $stats") if isdbg('pc11'); 
+               }
+               $recurse = 0;
+       } else {
+               dbg("END $self->{call}: NORMAL $data finished $stats") if isdbg('pc11');
+       }
 }
 
 # used to kick outstanding PC11 if required
 sub pc11_process
 {
-       if ($pc11_saved && $main::systime > $pc11_saved_time) {
-               dbg("saved PC11 spot $pc11_saved->[0] timed out waiting, recursing") if isdbg("pc11");
-               shift @$pc11_saved;     # saved key
-               my $self = shift @$pc11_saved;
-               my @saved = @$pc11_saved;
-               undef $pc11_saved;
-               $self->handle_11(@saved, 1);
+       foreach my $key (keys %pc11_saved) {
+               my $r = $pc11_saved{$key};
+               if ($main::systime > $r->[0] + $pc11_dwell_time) {
+                       dbg("---") if isdbg("pc11");
+                       dbg("RECURSE $r->[1]->{call}: PC11 spot $key timed out waiting, resend") if isdbg("pc11");
+                       my $self = $r->[1];
+                       delete $pc11_saved{$key};
+                       $self->handle_11(@$r[2..5], 1);
+               }
        }
 }
 
+# return the pc11 / pc61 / promotions data
+sub get_pc11_61_stats
+{
+       my $promotions =  $pc11_to_61+$rpc11_to_61;
+       my $percent = ($pc11_rx + $pc61_rx) ? ($pc11_rx * 100) / ($pc11_rx + $pc61_rx) : 0;
+       my $pc11_61p = $pc11_rx ? ($promotions * 100) / $pc11_rx : 0;
+       return {
+                       pc11_rx => $pc11_rx+0,
+                       pc61_rx => $pc61_rx+0,
+                       pc11_to_61 => $pc11_to_61+0,
+                       rpc11_to_61 => $rpc11_to_61+0,
+                       promotions => $promotions+0,
+                       pc11_percent => $percent+0,
+                       promotions_percent => $pc11_61p+0,
+                  };
+}
+
 # announces
 sub handle_12
 {
@@ -424,17 +562,10 @@ sub handle_12
        # announce duplicate checking
        $pc->[3] =~ s/^\s+//;                   # remove leading blanks
 
-       if ($censorpc) {
-               my @bad;
-               if (@bad = BadWords::check($pc->[3])) {
-                       dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
-                       return;
-               }
-       }
-
        # if this is a 'nodx' node then ignore it
        if ($badnode->in($pc->[5])) {
-               dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
+               dbg($line) if isdbg('nologchan');
+               dbg("PCPROT: Bad Node, dropped");
                return;
        }
 
@@ -442,7 +573,8 @@ sub handle_12
        my $nossid = $pc->[1];
        $nossid =~ s/-\d+$//;
        if ($badspotter->in($nossid)) {
-               dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
+               dbg($line) if isdbg('nologchan');
+               dbg("PCPROT: Bad Spotter, dropped");
                return;
        }
 
@@ -453,6 +585,17 @@ sub handle_12
                return;
        }
 
+       if ($censorpc) {
+               my @bad;
+               if (@bad = BadWords::check($pc->[3])) {
+                       my $bw = join ', ', @bad;
+                       dbg($line) if isdbg('nologchan');
+                       dbg("PCPROT: Badwords: '$bw', dropped");
+                       return;
+               }
+       }
+
+
        my $dxchan;
 
        if ((($dxchan = DXChannel::get($pc->[2])) && $dxchan->is_user) || $pc->[4] =~ /^[\#\w.]+$/){
@@ -720,17 +863,21 @@ sub handle_18
        $self->state('init');
 
        my $parent = Route::Node::get($self->{call});
-
+       
        # record the type and version offered
-       if (my ($version) = $pc->[1] =~ /DXSpider Version: (\d+\.\d+)/) {
-               $self->{version} = 53 + $version;
-               $self->user->version(53 + $version);
-               $parent->version(0 + $version);
+       if (my ($software, $version) = $pc->[1] =~ /(DXSpider|CC\s*Cluster)\s+Version: (\d+(?:\.\d+)?)/i) {
+               $version += 0;
+               $version += 53 if $version < 6;
+               $self->{version} = $version;
+               $self->user->version($version);
+               $parent->version($version);
                my ($build) = $pc->[1] =~ /Build: (\d+(?:\.\d+)?)/;
-               $self->{build} = 0 + $build;
-               $self->user->build(0 + $build);
-               $parent->build(0 + $build);
-               dbg("$self->{call} = DXSpider version $version build $build");
+               $build += 0;
+               $build = 0 unless $build > 1;
+               $self->{build} = $build;
+               $self->user->build($build);
+               $parent->build($build);
+               dbg("$self->{call} = $software version $version build $build");
                unless ($self->is_spider) {
                        dbg("Change U " . $self->user->sort . " C $self->{sort} -> S");
                        $self->user->sort('S');
@@ -738,6 +885,20 @@ sub handle_18
                        $self->sort('S');
                }
 #              $self->{handle_xml}++ if DXXml::available() && $pc->[1] =~ /\bxml/;
+       } elsif (my ($software, $version, $build) = $pc->[1] =~ /(AR-Cluster)\s+Version:\s+(\d+\.\d+).?(\d+\.\d+)?/) {
+               dbg("$self->{call} = $software version $version build $build");
+               $self->{version} = $version;
+               $self->user->version($version);
+               $parent->version($version);
+               $self->{build} = $build;
+               $self->user->build($build);
+               $parent->build($build);
+               unless ($self->is_arcluster) {
+                       dbg("Change U " . $self->user->sort . " C $self->{sort} -> R");
+                       $self->user->sort('R');
+                       $self->user->put;
+                       $self->sort('R');
+               }
        } else {
                dbg("$self->{call} = Unknown software ($pc->[1] $pc->[2])");
                $self->version(50.0);
@@ -745,7 +906,7 @@ sub handle_18
                $self->user->version($self->version);
        }
 
-       if ($pc->[1] =~ /\bpc9x/) {
+       if ($pc->[1] =~ /CC\s*Cluster/i || $pc->[1] =~ /\bpc9x/i) {
                if ($self->{isolate}) {
                        dbg("$self->{call} pc9x recognised, but node is isolated, using old protocol");
                } elsif (!$self->user->wantpc9x) {
@@ -780,6 +941,7 @@ sub check_add_user
                } else {
                        $user->homenode($homenode) if $homenode;
                        $user->node($homenode);
+                       $user->priv(0);
                }
                $user->lastin($main::systime); # this make it last longer than just this invocation
                $user->put;                             # just to make sure it gets written away!!!
@@ -788,7 +950,7 @@ sub check_add_user
 
        # this is to fix a problem I introduced some build ago by using this function for users
        # whereas it was only being used for nodes.
-       if ($user->is_user && $user->lockout && $user->priv == 1) {
+       if ($user->is_user && $user->lockout && ($user->priv // 0) == 1) {
                $user->priv(0);
                $user->lockout(0);
                dbg("DXProt: PC92 user record for $call depriv'd and unlocked");
@@ -945,7 +1107,7 @@ sub handle_20
        my $origin = shift;
        my $pc = shift;
 
-       if ($self->{do_pc9x} && $self->{state} ne 'init92') {
+       if ($self->{do_pc9x} && $self->{state} ne 'init92' && $self->{state} ne 'normal') {
                $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
                $self->{do_pc9x} = 0;
        }
@@ -1039,7 +1201,7 @@ sub handle_22
        my $pc = shift;
 
        if ($self->{do_pc9x}) {
-               if ($self->{state} ne 'init92') {
+               if ($self->{state} ne 'init92' && $self->{state} ne 'normal') {
                        $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
                        $self->{do_pc9x} = 0;
                }
@@ -1555,18 +1717,27 @@ sub _decode_pc92_call
        my $is_node = $flag & 4;
        my $is_extnode = $flag & 2;
        my $here = $flag & 1;
-       my $ip;
-       $part[1] //= '';
-       $part[2] //= '';
-       $part[3] //= '';
-       if ($part[1] =~ /[,.]/) {
-               $ip = $part[1];
-               $part[1] = $part[2] = 0;
-       } elsif ($part[3] =~ /[,.]/) {
-               $ip = $part[3];
-       }
-       $ip =~ s/,/:/g if $ip;
-       return ($call, $is_node, $is_extnode, $here, $part[1], $part[2], $ip);
+       my $version = $part[1] || 0;
+       my $build = $part[2] || 0;
+       my $ip = $part[3] || '';
+
+       # remember that, at this stage, IPV6 addresses have : replaced by ,
+       if (length $version > 4 && $version =~ /[,\.][\da-f]{1,4}/i) {
+               $ip = $version;
+               $version = 0;
+       }
+       $version =~ s/\D//g;
+       $version = 0 unless $version && $version =~ /^[0-9]+$/;
+       $build =~ s/^0\.//;
+       $build =~ s/\D//g;
+       $build = 0 unless $build &&  $build =~ /^[0-9]+$/;
+       if ($ip) {
+        $ip =~ s/,/:/g;
+        $ip =~ s/^::ffff://i;
+               $ip = '' unless is_ipaddr($ip);
+    }
+       dbg("'$icall' = '" . join("', '", $call, $is_node, $is_extnode, $here, $version, $build, $ip) . "'") if isdbg('pc92');
+       return ($call, $is_node, $is_extnode, $here, $version+0, $build+0, $ip);
 }
 
 # decode a pc92 call: flag call : version : build
@@ -1597,6 +1768,7 @@ sub _encode_pc92_call
                $ip =~ s/:/,/g;
                $extra .= ':' . $ip;
        }
+
        return "$flag$call$extra";
 }
 
@@ -1614,9 +1786,8 @@ sub _add_thingy
        my @rout;
 
        # remove spurious IPV6 prefix on IPV4 addresses
-       $ip =~ s/^::ffff:// if $ip;
-       $build //= 0;
-       $version //= 0;
+       $build ||= 0;
+       $version ||= 0;
 
        if ($call) {
                my $ncall = $parent->call;
@@ -1641,19 +1812,22 @@ sub _add_thingy
                                @rout = $parent->add($call, $version, Route::here($here), $ip);
                                $r = Route::Node::get($call);
                                $r->PC92C_dxchan($dxchan->call, $hops) if $r;
-                               if ($version && $version =~ /\d+/) {
+                               if ($version && is_numeric($version) && !$r->K && !$user->K) {
                                        my $old = $user->sort;
                                        if ($user->is_ak1a && (($version >= 5455 &&  $build > 0) || ($version >= 3000 && $version <= 3500)) ) {
                                                $user->sort('S');
-                                               dbg("PCProt::_add_thingy node $call v: $version b: $build sort ($old) updated to " . $user->sort);
-                                       } elsif ($user->is_spider && $version =~ /^\d+$/ && ($version < 3000 || ($version > 4000 && $version < 5455))) {
-                                               unless ($version == 5000 && $build == 0) {
+                                               dbg("PCPROT::_add_thingy node $call v: $version b: $build sort ($old) updated to " . $user->sort);
+                                       } elsif ($user->is_spider && ($version < 3000 || ($version > 4000 && $version < 5455))) {
+                                               unless ($version > 0  && $build == 0) {
                                                        $user->sort('A');
-                                                       $build //= 0;
-                                                       dbg("PCProt::_add_thingy node $call v: $version b: $build sort ($old) downgraded to " . $user->sort);
+                                                       $build ||= 0;
+                                                       dbg("PCPROT::_add_thingy node $call v: $version b: $build sort ($old) downgraded to " . $user->sort);
                                                }
                                        }
                                }
+                               $r->version($user->version) if $user->version;
+                               $r->build($user->build) if $user->build;
+                               $r->K(1) if $user->K;
                        } else {
                                dbg("ROUTE: added user $call to $ncall") if isdbg('routelow');
                                $user = check_add_user($call, 'U', $parent->call);
@@ -1874,7 +2048,7 @@ sub pc92_handle_first_slot
        }
        $parent->here(Route::here($here));
        $parent->version($version || $pc19_version) if $version;
-       $build =~ s/^0\.//, $parent->build($build) if $build;
+    $parent->build($build) if $build;
        $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
        return ($parent, @radd);
 }
@@ -1996,23 +2170,40 @@ sub handle_92
                        push @radd, $add if $add;
                        $parent->reset_obs;
                        my $call = $parent->call;
-                       my $version = $ent[4] // 0;
-                       my $build = $ent[5] // 0;
+                       my $version = $ent[4] || 0;
+                       my $build = $ent[5] ||  0;
                        $build =~ s/^0\.//;
-                       my $oldbuild = $parent->build // 0;
-                       $oldbuild =~ s/^0\.//;
-                       my $oldversion = $parent->version // 0;
+                       my $oldbuild = $parent->build || 0;
+                       my $oldversion = $parent->version || 0;
                        my $user = check_add_user($parent->call, 'S');
                        my $oldsort = $user->sort // '';
-                       if ($oldsort ne 'S' || $oldversion != $version || $build != $oldbuild) {
-                               dbg("PCProt PC92 K node $call updated version: $version (was $oldversion) build: $build (was $oldbuild) sort: 'S' (was $oldsort)");
-                               $user->sort('S');
-                               $user->version($parent->version($version));
-                               $user->build($parent->build($build));
-                               $user->put;
-                       }
 
-                       dbg("ROUTE: reset obscount on $parent->{call} now " . $parent->obscount) if isdbg('obscount');
+                       dbg("PCPROT: PC92 K v: $version ov: $oldversion b: $build ob: $oldbuild pk: " . ($parent->K || '0') . " uk: " . ($user->K || 0)) if isdbg('pc92k');
+                               
+                       if (is_numeric($version) || is_numeric($build)) {
+                               my $changed = 0;
+                               if (($oldversion ne $version || $build ne $oldbuild)) {
+                                       dbg("PCPROT: PC92 K node $call updated version: $version (was $oldversion) build: $build (was $oldbuild)");
+                                       $user->version($parent->version($version));
+                                       $user->build($parent->build($build));
+                                       ++$changed;
+                               }
+                               if ($oldsort ne 'S') {
+                                       dbg("PCPROT: PC92 K node $call updated sort: $sort (was $oldsort)");
+                                       $user->sort('S');
+                                       ++$changed;
+                               }
+                               unless ($user->K) {
+                                       dbg("PCPROT: PC92 K node $call updated - marked as PC92 K user");
+                                       $user->K(1);
+                                       ++$changed;
+                               }
+                               $user->put if $changed;
+                               $parent->K(1); # mark this as come in on a K
+                       } else {
+                               dbg("DXProt PC92 K version call $call: invalid version: '$version' or build: '$version', ignored");
+                       }
+                       dbg("ROUTE: reset obscount on $call now " . $parent->obscount) if isdbg('obscount');
                }
        } elsif ($sort eq 'A' || $sort eq 'D' || $sort eq 'C') {
 
@@ -2131,7 +2322,7 @@ sub handle_92
        }
 
        # broadcast it if we get here
-       $self->broadcast_route_pc9x($pcall, undef, $line, 0);
+       $self->broadcast_route_pc9x($pcall, undef, $line, 0) unless !$pc92_ad_enabled && ($sort eq 'A' || $sort eq 'D');
 }
 
 # get all the routes for a thing, bearing in mind that the thing (e.g. a user)
@@ -2198,7 +2389,11 @@ sub handle_93
        my $via = uc $pc->[5];
        my $text = $pc->[6];
        my $onode = uc $pc->[7];
-       $onode = $pcall if @$pc <= 8;
+       my $ipaddr = $pc->[8];
+
+       $onode = undef unless $onode && is_callsign($onode);
+       $onode //= $pcall;
+       $ipaddr = undef unless $ipaddr && is_ipaddr($ipaddr);
 
        # this is catch loops caused by bad software ...
        if (eph_dup("PC93|$from|$text|$onode", $pc10_dupe_age)) {
@@ -2210,21 +2405,13 @@ sub handle_93
                my $s = "ANNTALK: $from\@$onode$vs -> $to '$text' route: $origin";
                dbg($s);
        }
-       
-       # will we allow it at all?
-       if ($censorpc) {
-               my @bad;
-               if (@bad = BadWords::check($text)) {
-                       dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
-                       return;
-               }
-       }
 
        # if this is a 'bad spotter' user then ignore it
        my $nossid = $from;
        $nossid =~ s/-\d+$//;
        if ($badspotter->in($nossid)) {
-               dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
+               dbg($line) if isdbg('nologchan');
+               dbg("PCPROT: Bad Spotter, dropped");
                return;
        }
 
@@ -2234,6 +2421,19 @@ sub handle_93
                return;
        }
 
+       # will we allow it at all?
+       if ($censorpc) {
+               my @bad;
+               if (@bad = BadWords::check($text)) {
+                       my $bw = join ', ', @bad;
+                       dbg($line) if isdbg('nologchan');
+                       dbg("PCPROT: Badwords: '$bw', dropped");
+                       return;
+               }
+       }
+
+       $self->populate_routing_table($onode, $from, $ipaddr);
+
        # if it is routeable then then treat it like a talk
        my $ref = Route::get($to);
        if ($ref) {
@@ -2312,4 +2512,48 @@ sub handle_default
        }
 }
 
+sub populate_routing_table
+{
+       my ($self, $node, $user, $ip) = @_;
+       
+       my $rn = Route::Node::get($node);
+       unless ($rn) {
+               $rn = Route::Node->new($node);
+               dbg("ROUTE $self->{call}: ADD NEW node: $node") if isdbg('pc11');
+       }
+
+       my $ru;
+       if ($user ne $node) {
+               $ru = Route::User::get($user);
+               unless ($ru) {
+                       $rn->add_user($user, 0, undef);
+                       dbg("ROUTE $self->{call}: ADD NEW user: $user -> $node") if isdbg('pc11');
+               }
+               $ru = Route::User::get($user);
+       }
+       
+       # Add/Change any IP address info
+
+       # as we have a route to a user, if it (or the node) does not exist then create them
+       # link the user to the node if not already done.
+       # then add or alter the IP address
+       if ($ip && is_ipaddr($ip)) {
+               my $new = $ip;
+               if ($ru) {
+                       if ($ru->ip ne $new) {
+                               if ($ru->ip) {
+                                       my $old = $ru->ip;
+                                       $ru->ip($new);
+                                       dbg("ROUTE $self->{call}: ALTER IP node: $node user: $user old IP: '$old'-> new IP: '$new'") if isdbg('pc11');
+                               } else{
+                                       $ru->ip($new);
+                                       dbg("ROUTE $self->{call}: NEW IP node: $node user: $user IP: '$new'") if isdbg('pc11');
+                               }
+                       }
+               } else {
+                       dbg("ROUTE $self->{call}: ADD Failed for node $node user $user") if isdbg('pc11');
+               }
+       }
+}
+
 1;